private void DrawPolygon(Feature feature)
{
if (Preferences.Get(Constants.MapDrawPolygonsKey, true))
{
XFMPolygon xfmpolygon = new XFMPolygon
{
StrokeWidth = 4,
StrokeColor = Color.OrangeRed,
FillColor = Color.OrangeRed.AddLuminosity(.1).MultiplyAlpha(0.6),
};
Polygon polygon = (Polygon)feature.Geometry;
foreach (LineString lineString in polygon.Coordinates)
{
foreach (Position pos in lineString.Coordinates)
{
xfmpolygon.Geopath.Add(new XFMPosition(pos.Latitude, pos.Longitude));
}
}
Map.MapElements.Add(xfmpolygon);
}
}
/// <summary>
/// When map is clicked, iterates through all features in the feature list and shows the feature info menu if feature has been tapped
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnMapClicked(object sender, MapClickedEventArgs e)
{
FeatureList.ForEach((Feature feature) =>
{
bool ItemHit = false;
if (feature.Geometry.Type == GeoJSONType.Polygon && Preferences.Get(Constants.MapDrawPolygonsKey, true))
{
Polygon polygon = (Polygon)feature.Geometry;
ItemHit |= polygon.ContainsPosition(new Position(e.Position.Longitude, e.Position.Latitude));
}
else if (feature.Geometry.Type == GeoJSONType.LineString && Preferences.Get(Constants.MapDrawLinesKey, true))
{
LineString lineString = (LineString)feature.Geometry;
ItemHit |= lineString.ContainsPosition(new Position(e.Position.Longitude, e.Position.Latitude, 0));
}
if (ItemHit)
{
_ = DisplayFeatureActionMenuAsync(feature);
}
});
}